Characterization of calcium chloride tetrahydrate as a phase change material and thermodynamic analysis of the results

Svetlana Ushak, Miriam Suárez, Sussy Véliz, Angel G. Fernández, Elsa Flores and Héctor R. Galleguillos

Renewable Energy, 2016, vol. 95, issue C, 213-224

Abstract: To study the feasibility of calcium chloride tetrahydrate as a phase-change material, we determined its melting point and heat of fusion using differential scanning calorimetry (DSC) in the temperature range of 0 °C-60 °C. We also determined the density and viscosity of molten calcium chloride tetrahydrate in the temperature range of 40 °C-65 °C and studied the effect of adding small quantities of LiCl, NaCl and KCl (1 mass %) on the resulting thermal and physical properties. Based on the determination of the thermophysical properties, the energy storage density was evaluated for the different systems. The CaCl2·4H2O + 1 mass % of LiCl exhibited higher values (174 J/cm3) than pure CaCl2·4H2O (156 J/cm3), and the CaCl2·4H2O + 1 mass % of NaCl (151 J/cm3).

Keywords: Calcium chloride tetrahydrate; Phase change material; Thermal energy storage; Solar energy (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:95:y:2016:i:c:p:213-224

DOI: 10.1016/j.renene.2016.04.012

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